@CHARSET "UTF-8";
#btn1{
	width:100px;height:100px;
	background-color:#ff0000;
	color:#ffffff;
}
#btn2{
	width:300px;height:100px;
	background-color:#00ff00;
}
#btn3{
	width:100px;height:200px;
	background-color:#0000ff;
	color:#ffff00;
}
